# TextProBarV3.py

# 文本进度条
import time
scale = 50
print('执行开始' .center(scale//2, '-'))
start = time.perf_counter()
for i in range(scale+1):
    a = '+' * i
    b = '=' * (scale - i)
    c = (i / scale) * 100
    dur = time.perf_counter() - start
    print('\r{:^3.0f}%[{}->{}]{:.2f}s'.format(c, a, b, dur), end='')
    time.sleep(0.1)
print('\n'+'执行结束'.center(scale // 2, '-'))



